GRID2 p.Glu81=
c.243A>G · VCV4776102
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00507%, amr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 9.3 | GERP 2.2, phastCons 1 |
| Overall | ||
| CADD | 19.85 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00507%
Admixed American · 3/59,182 alleles
Filtering AF
0.00135%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000673%
Overall
0.000187%
3/1,608,278 alleles · very rare
exomes 3/1,456,010 · genomes 0/152,268 · joint denominator
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- GRID2
- Protein
- p.Glu81=
- Coding
- c.243A>G
- MANE Select
- NM_001510
- Type
- single nucleotide variant
- Location
- chr4:92590285 (GRCh38)
- Gene constraint
- LOEUF 0.332 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 76.07 · 6 PDB
- Residue 81
- the 'interaction with cbln1 homotrimer' region; an α-helix
Similar variants
- GRID2 p.Ala654Thr Pathogenic/Likely pathogenic ★★ same type
- GRID2 p.Thr649Ala Pathogenic/Likely pathogenic ★★ same type
- GRID2 p.Ala196Glu Uncertain significance ★★ ⚠ same type
- GRID2 p.Ala21Val Uncertain significance ★★ ⚠ same type
- GRID2 p.Ala574Ser Uncertain significance ★★ ⚠ same type
- GRID2 p.Arg229Gln Uncertain significance ★★ ⚠ same type
- GRID2 p.Arg297Gln Uncertain significance ★★ ⚠ same type
- GRID2 p.Arg300His Uncertain significance ★★ ⚠ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/grid2-p-glu81 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown